Trezor Bridge — the bridge between your Trezor and your computer

A concise, stylish guide to what Trezor Bridge does, why it has existed, and what users need to know today to connect their hardware wallet safely and reliably.

What is Trezor Bridge?

Trezor Bridge is (historically) a lightweight helper program that enabled secure USB communication between Trezor hardware wallets and desktop browsers or the Trezor Suite application. It was created to replace older browser plugins and provide a consistent, cross-platform layer that allowed web apps to talk to the device without relying on fragile browser extensions.

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Why it existed (and what problem it solved)

Browsers evolved toward stricter security policies, and the direct support for USB devices varied between vendors. Trezor Bridge acted as a stable translator between the USB subsystem and Trezor's web-based interfaces, improving compatibility and making setup simpler for many users. Instead of installing browser plugins, users installed a single small background service that exposed a controlled API for Trezor Suite and supported web apps.

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Current status — deprecation & migration

Important: Trezor's team has deprecated the standalone Trezor Bridge in favor of more integrated approaches (Trezor Suite desktop app and modern WebUSB for web use). The official guidance recommends uninstalling the standalone Bridge where appropriate and using Trezor Suite (desktop or web) as the supported interface going forward. This is part of a planned consolidation to reduce complexity and avoid potential conflicts with future releases of Suite and browser APIs.

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How users connect today

For most users the recommended path is the Trezor Suite desktop app — it bundles everything needed for a seamless experience (and avoids manual Bridge installation). When using the web version of Suite, modern browsers may use WebUSB to talk to devices directly; Suite documents this path while still advising the desktop app for the smoothest experience across operating systems.

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Tip — If you still have a legacy Bridge installed, check official guidance from Trezor before keeping it: the team recommends removing standalone Bridge to prevent interference with newer Suite releases.

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Security & best practices

Whether you use Bridge, Suite, or WebUSB, the underlying security model stays consistent: your private keys never leave the hardware. The host software (Suite or Bridge) only requests signatures; every critical action is displayed on the device screen and requires your manual confirmation. Always download Bridge or Suite from official Trezor channels and avoid third-party download mirrors or links.

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Practical tips for a smooth connection

Use the official Trezor Suite desktop app for the fewest compatibility issues.

If guided to install Bridge, prefer the official download page and verify signatures where provided.

On web, use a browser supporting WebUSB (Chrome family) for direct connections.

If you experience issues, uninstall legacy Bridge and update Suite to the latest release.

Check OS requirements for Suite: modern Windows, macOS, or Linux versions are supported.

Always confirm addresses and details on the physical device before approving.

Why this matters

The evolution from Bridge to Suite/WebUSB reflects a broader trend: simplifying the user path while keeping hardware signing intact. For end users, that means fewer moving parts to manage and a clearer upgrade path. For security-conscious users the message is the same — keep your device firmware up to date, use official software, and verify every action on the device itself.

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Official Trezor Start & Suite